| Key West to Duluth (Minnesota) | 1,637.76 mi (2,635.72 km) |
| Key West to Dumas (Texas) | 1,431.31 mi (2,303.47 km) |
| Key West to Dumont (New Jersey) | 1,217.55 mi (1,959.45 km) |
| Key West to Duncan (Oklahoma) | 1,187.64 mi (1,911.32 km) |
| Key West to Duncanville (Texas) | 1,072.82 mi (1,726.53 km) |
| Key West to Dundalk (Maryland) | 1,061.75 mi (1,708.71 km) |
| Key West to Dunedin (Florida) | 247.67 mi (398.59 km) |
| Key West to Dunkirk (New York) | 1,245.70 mi (2,004.77 km) |
| Key West to Dunmore (Pennsylvania) | 1,217.09 mi (1,958.72 km) |
| Key West to Dunwoody (Georgia) | 665.63 mi (1,071.22 km) |
| Key West to Durango (Colorado) | 1,769.85 mi (2,848.30 km) |
| Key West to Durant (Oklahoma) | 1,093.59 mi (1,759.96 km) |
| Key West to Durham (North Carolina) | 807.02 mi (1,298.78 km) |
| Key West to Dyer (Indiana) | 1,215.42 mi (1,956.03 km) |
| Key West to Dyersburg (Tennessee) | 912.95 mi (1,469.24 km) |
